Ring-shaped charcoal tablet



FIG. 1 is a front elevational view of a ring-shaped charcoal tablet showing my new design, the rear elevational view being a mirror image;

FIG. 2 is a left side view thereof, the right side view being a mirror image;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a perspective view thereof; and,

FIG. 6 is another perspective view thereof. 

CLAIM The ornamental design for a ring-shaped charcoal tablet, as shown and described. 